timers-modal-and-threading SKILL.md skillB
timers-modal-and-threading from tmhsdigital/blender-developer-tools is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add tmhsdigital/blender-developer-tools/timers-modal-and-threading@git:20261012.f6d0439Pins git:20261012.f6d0439 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- tmhsdigital/blender-developer-tools
- Path
skills/timers-modal-and-threading/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261012.f6d0439, committed Oct 12, 2026
- First version recorded
- Oct 5, 2026
- Size
- 11,501 bytes
- Repository stars
- 17
- License
- a license file GitHub does not identify
Run long or repeated work in a Blender add-on without freezing or crashing it: bpy.app.timers return values and persistent=True, modal operators driven by event_timer_add, and worker threads that hand results to the main thread through a queue. Use when the user polls, animates or downloads from an add-on, calls bpy from a thread, writes a modal operator, sees a timer never fire in --background, or loses a timer after opening a file. Targets 5.2 LTS with 4.5 LTS fallback.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Timers, Modal Operators and Threading ## Trigger Use this skill when the user: - Wants something to happen later or repeatedly (polling, autosave, a progress readout) - Runs slow work (network, file processing, a solver) and the UI freezes - Calls `bpy` from a `threading.Thread` and gets crashes or corrupted data - Writes a modal operator, or one that never stops - Registers a timer in `blender --background` and it never runs - Loses a timer after File → Open or `wm.read_homefile` ## Required inputs - **What runs, how often, and for how long** - **Whether it runs headless** (`--background`) or in a windowed Blender - **Whether the work must survive file loads** (an add-on service) or belongs to one file ## The event loop is the whole story Timers, modal operators and `event_timer_add` are all driven by Blender's window-manager event loop. A windowed Blender has one. `blender --background --python script.py` does not: the script runs, Blender exits, and a registered timer never runs (measured on 4.5.11, 5.1.2 and 5.2.1: `is_registered` is `True` and the callback never executes). Headless work must run synchronously in the script; there is no deferred callback to wait for. …
Read the whole file at its exact version.
How to install
mdr add tmhsdigital/blender-developer-tools/timers-modal-and-threading@sha256:249e042ce294e9f2The line at the top of this page pins the label git:20261012.f6d0439, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_qjsiyxe7wzfepcna)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Oct 5, 2026 and Oct 12, 2026, about one every 4 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261012.f6d0439 latest | 2026-10-12 | f6d0439 | 11,501 B | B | view · diff |
| git:20261007.4aeb805 | 2026-10-07 | 4aeb805 | 10,564 B | B | view · diff |
| git:20261005.c906438 | 2026-10-05 | c906438 | 9,041 B | B | view |
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11501 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
tmhsdigital/blender-developer-tools · 17 stars · license a license file GitHub does not identify · pushed 2026-10-18 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qjsiyxe7wzfepcna GET https://markdownregistry.com/api/v1/resolve?ref=tmhsdigital/blender-developer-tools/timers-modal-and-threading GET https://markdownregistry.com/api/v1/blob/249e042ce294e9f21df19108f60f448247feb921f38a73df0c04ab267f02e383
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.